Ring Size Chart

How to Find Your Perfect US Ring Size at Home

Finding your ideal fit shouldn't be a guessing game. Whether you are shopping for a promise ring or a special gift, using our US ring size calculator is the best way to ensure comfort and confidence.

Many of our American customers find that measuring in millimeters (mm) provides the most precision. Use our interactive tool below to convert your measurement into standard US sizing instantly.

And remember — if you get the wrong size, we offer one exchange per order — even for custom engraved rings!

Ring Sizing Calculators

Use a measuring tape, a strip of paper, or a piece of string to wrap around your ring finger and measure the full circle. 

Or, measure straight across the inside of a ring you already have to find its diameter.

To get the most accurate result, we recommend measuring your finger at the end of the day when it is at its largest. If you are using the string method, ensure the string sits snugly but can still slide over your knuckle.

Why Choose US Sizing? All of our rings are crafted using the standard US sizing scale. If you are between sizes, we generally recommend "sizing up" for a more comfortable fit.

Don't forget, most of our rings include free engraving, allowing you to personalize your piece once you've found your perfect fit!